Hint: he was a notorious womanizer.
Pablo Picasso! The painter did this beautiful portrait of his wife and dancer Olga Khokhlova and their son Paulo Picasso in 1922. Shortly after Paul0 was born, Olga learned that Pablo was having an affair with a 17-year-old French girl — and that she was pregnant. She promptly scooped up Paulo and moved to the South of France where she filed for divorce.
The divorce got even messier when Pablo refused to divide up his property with Olga. As a result, she remained married to him until her death in 1954.